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Finding the Fourth Proportional to 639,750.17, 958,796.93 and 260,230.34

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Solution

The fourth proportional to 639,750.17, 958,796.93 and 260,230.34 is: 390,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,750.17 : 958,796.93 = 260,230.34 : x
  2. Step 2: Convert to fraction form
    639,750.17/958,796.93 = 260,230.34/x
  3. Step 3: Cross multiply
    639,750.17x = 958,796.93 × 260,230.34
  4. Step 4: Simplify right side
    639,750.17x = 249,508,054,132.42
  5. Step 5: Solve for x
    x = 249,508,054,132.42/639,750.17
  6. Step 6: Final answer
    x = 390,008.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.